In his news conference this morning, Bush actually corrected himself like that. I don't see a transcript up anywhere yet but will try to check later ... .
Update, 2:30 pm: No need to check back: Ben Zimmer just posted a comment with the details, and here's a link to his far more nuanced treatment of the full context. The missus worries about my ticker when I watch or listen to Bush for extended periods ... I just happened to catch that one snippet.